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Proceedings Paper

Imaging shear wave propagation for elastic measurement using OCT Doppler variance method
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Paper Abstract

In this study, we have developed an acoustic radiation force orthogonal excitation optical coherence elastography (ARFOE-OCE) method for the visualization of the shear wave and the calculation of the shear modulus based on the OCT Doppler variance method. The vibration perpendicular to the OCT detection direction is induced by the remote acoustic radiation force (ARF) and the shear wave propagating along the OCT beam is visualized by the OCT M-scan. The homogeneous agar phantom and two-layer agar phantom are measured using the ARFOE-OCE system. The results show that the ARFOE-OCE system has the ability to measure the shear modulus beyond the OCT imaging depth. The OCT Doppler variance method, instead of the OCT Doppler phase method, is used for vibration detection without the need of high phase stability and phase wrapping correction. An M-scan instead of the B-scan for the visualization of the shear wave also simplifies the data processing.

Paper Details

Date Published: 8 March 2016
PDF: 6 pages
Proc. SPIE 9697, Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX, 96971P (8 March 2016); doi: 10.1117/12.2214266
Show Author Affiliations
Jiang Zhu, Beckman Laser Institute and Medical Clinic (United States)
Yusi Miao, Beckman Laser Institute and Medical Clinic (United States)
Univ. of California, Irvine (United States)
Yueqiao Qu, Beckman Laser Institute and Medical Clinic (United States)
Univ. of California, Irvine (United States)
Teng Ma, The Univ. of Southern California (United States)
Rui Li, Beckman Laser Institute and Medical Clinic (United States)
Yongzhao Du, Beckman Laser Institute and Medical Clinic (United States)
Shenghai Huang, Beckman Laser Institute and Medical Clinic (United States)
K. Kirk Shung, The Univ. of Southern California (United States)
Qifa Zhou, The Univ. of Southern California (United States)
Zhongping Chen, Beckman Laser Institute and Medical Clinic (United States)


Published in SPIE Proceedings Vol. 9697:
Optical Coherence Tomography and Coherence Domain Optical Methods in Biomedicine XX
Joseph A. Izatt; James G. Fujimoto; Valery V. Tuchin, Editor(s)

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